The quadrupolar phases of the S=1 bilinear-biquadratic Heisenberg model on the triangular lattice

dc.creatorLaeuchli, A.
dc.creatorMila, F.
dc.creatorPenc, K.
dc.date2006-05-09
dc.date2006-08-23
dc.date.accessioned2026-07-07T07:08:51Z
dc.date.available2026-07-07T07:08:51Z
dc.descriptionUsing mean-field theory, exact diagonalizations and SU(3) flavour theory, we have precisely mapped out the phase diagram of the S=1 bilinear-biquadratic Heisenberg model on the triangular lattice in a magnetic field, with emphasis on the quadrupolar phases and their excitations. In particular, we show that ferroquadrupolar order can coexist with short-range helical magnetic order, and that the antiferroquadrupolar phase is characterized by a remarkable 2/3 magnetization plateau, in which one site per triangle retains quadrupolar order while the other two are polarized along the field. Implications for actual S=1 magnets are discussed.
dc.description4 pages, 5 figures, published version
dc.identifierhttps://arxiv.org/abs/cond-mat/0605234
dc.identifierhttp://arxiv.org/abs/cond-mat/0605234
dc.identifierPhys. Rev. Lett. 97, 087205 (2006)
dc.identifierdoi:10.1103/PhysRevLett.97.087205
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/110859
dc.subjectStrongly Correlated Electrons
dc.titleThe quadrupolar phases of the S=1 bilinear-biquadratic Heisenberg model on the triangular lattice
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